If the selfish person you are dealing with does not seem capable of changing, he may be more than just self-centered and selfish—he may be a narcissist. Narcissists are not only selfish and self-absorbed, but also lack feelings of sympathy and purposely use others. They are harder to deal with than the average selfish person. In this case, you can try asking them to get professional help, but if that doesn’t work cut all links with them and end the relationship outright. Life is too short to be bogged down by selfish people and tied down in toxic relationships that suck the energy and happiness out of you.